Answer:
4= 36 ÷ 9
Step-by-step explanation:
Let's solve your equation step-by-step.
84
=
42
+
x
3
Step 1: Simplify both sides of the equation.
84
=
42
+
x
3
84
=
42
+
1
3
x
84
=
1
3
x
+
42
Step 2: Flip the equation.
1
3
x
+
42
=
84
Step 3: Subtract 42 from both sides.
1
3
x
+
42
−
42
=
84
−
42
1
3
x
=
42
Step 4: Multiply both sides by 3.
3
*
(
1
3
x
)
=
(
3
)
*
(
42
)
x
=
126
Answer:
x
=
126
Answer:
300 cars must be made to minimize the unit cost
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
It's vertex is the point 
In which
Where
If a>0, the vertex is a minimum point, that is, the minimum value happens at 
, and it's value is 
.
The cost of producing x cars is given by:
So a quadratic equation with 
How many cars must be made to minimize the unit cost?
This is the xvalue of the vertex. So
300 cars must be made to minimize the unit cost
Answer:
280
Step-by-step explanation:
We know that there are at least 8 regular subscribers and there are at least 9 premium subscribers. And we know it's in that ratio. So the best way to start this is to divide 595 by 8+9 to get the single unit amount of both subscribers:
595/17 = 35
So one unit of anything is at least 35. Now, since we're looking for regular subscribers, we'll multiply this value by 8:
35*8 = 280
So 280 is our answer!
